On Sat, Aug 30, 2014 at 04:56:52PM -0400, Dave Mielke wrote: > is there any way to detect that a ttyUSBn serial device has gone away when > monitoring it for input with poll() (i.e. with POLLIN set)? I've tried also > setting POLLHUP and POLLERR, although the documentation says that isn't > necessary. I've also tried setting POLLRDHUP. I've tried enabling the HUPCL > termios attribute on the serial device. None of these seem to work, i.e. poll() > doesn't come out of its wait when I disconnect the USB to serial adapter. In > case it matters, I'm using 3.11.10-100.fc18.x86_64. You should get a hangup signal on the device if it is removed, have you tried that? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
